9812455 Tappet | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta tappet, part number 9812455, listed in the Engine Covers group. It transfers the cam profile to the valve gear, and its face is a wearing surface matched to the camshaft it runs against. Volvo Penta publishes no fitment, dimensions or assembly detail against this number, so check it against the parts list for your own engine before ordering.

⚙️ Key Features

• Genuine Volvo Penta tappet
• Engine Covers group
• Valve-train wearing component
• No fitment or dimensions published against this number — check it against the parts list for your engine

🔌 Function

Transfers the cam profile to the valve gear, and its face is a wearing surface matched to the camshaft it runs against.

⚠️ Common Signs of Failure

• A regular tapping or ticking from the top of the engine, in time with camshaft speed
• Noise worst on a cold start or after the engine has stood, and quietening as oil pressure builds
• Valve clearances found uneven, drifting between checks, or one cylinder consistently out
• Rough running, misfire or lost power on one cylinder, with a valve not opening fully
• Bright metal or fine debris in the oil or on the filter, or visible wear and scoring on the cam lobes when the cover comes off

🛠️ Service Notes

• Keep the tappets in order as they come out and refit each to its original bore if they are being reused; a used face and its own cam lobe have bedded to each other
• Inspect the contact faces before fitting — pitting, scoring, a cupped or dished face, or a flat spot on a roller means the tappet is finished, and the matching cam lobe must be inspected as well
• Renew tappets and camshaft together where either is worn; a new camshaft run on worn tappets, or the reverse, will not last
• Coat the tappet face and its bore with clean engine oil or the assembly lubricant specified for your engine before fitting, so the first start is not a dry one
• Bar the engine over by hand after assembly to confirm free, quiet movement, then set and check the valve clearances by the method and figures in the workshop manual for your engine

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging